Solaris grep is letting me down and admin rules prevent me from using gnu grep. I have a file that looks

10.1.2.1
myhost
1-4-3-2/0

[download]

I'd like to cat to pipe that file and do a perl regex to print only valid ip addresses.

cat file | perl -.......

and the output would in this case be

10.1.2.1

[download]

I looked around and just found entire scripts. thanks

In reply to Match Ip Address on cmd line by sans-clue

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